Gar-dumping platform



June 5, 1923.

l .45 7, 754 c. c. SMITH CAR DUMPING PLATFORM Filed June- 8, 1921 MPLATF'ORM Patented June 5 1923 *eae-bem prm simian; Q r r ...z np'plicatibn fi ledm 8,

ToaZZ whom itmay conccrw: 1

Be it known that I, G. 6.? SMITH,"- a

citizen of the Unitedv States ofAanericagmnd resident of Wheeling, county of" Ohio, and State of Vest Virginia, have invented certainnew and useful Ianprovementsin Gar- DumpingPlatforms of which the following is aspeciiicatioir.

This invent on relates broadly to cardumping mechanism, and it has for; its primary obj eat to provide a platform; designed primarily for the" dumping. of mine cars. which is adapted tobe'automatically actuated, when mounted by. a loaded car, to assumew inclined .car dumping. position, and which is 7 adapted, following the dumping operation, toresume its normal-.qpos tion- A further object of,theyinvention s to provide a platform-having, in general, the

characteristics of the dumping platform disclosed in'Patent No; 1,380,745, granted to". me June 7, l92l towhich reference-isliadgfor a description of theprinci-pl'e-by which the platform and car, followingv dumping-of the latter, are. returned 7 to normal position through shifting, ofnthe location of the cen. ter of gravity. l r

A still furtherobject is to provide; simple adjusting means whereby thepointofarrest of cars mounting thefplat-forin'mayybe 'ac'curately adjusted:

In describi'ngtheinvefition'in detail, reference is herein had to the accompanying drawings, in which 1 Figure 1 is a side elevation of the invention with a car mounted thereon; I

Figure 2 is a broken top plan view of .the invention; I v I Figure 3 is an enlarged detail view in top plan of the adjusting device, I

Figure & is a side elevati' n of the same; andi Figure 5 is a section on line'55, Fig. 1.

Referring to said drawings, 1 indicates parallel longitudinally extending beams or timbers of a tipple structure. Carried by the tipple are track rails 2 which are disposed in registering alinement'with vthe rear ends of rail sections 3 carried by a tiltable or rockable dumping platform Rigidly mounted upon the top of the platform at each of its opposite. sides is an upright frame member or hanger 5 which carries an outwardly directed spindle 6. Each of the spindles is journaled in a bearing 7 formed on or carried by an upright frame member vritsinin.

i or support 8 which is mounted upon and sjupportedfby the adjacent timber '1. Thus,

it will be apparent thattheplatform 4 is suspended from the bearings? of the supports the spindles- G -and depending hangers; rendering said platform capable of being swung or rocked: on said. spindles to and from its-normal horizontal.posit-ion.

' Suitable-'means is provided whereby 1 rearward tipping of theplatform froinits nor mal horizontal position is preve'nted,said

means, as herein exemplified, comprising a' vertically. adjustable bolt 9-mountedwi1r a supporting bracket 10' carriedonthe inner face of each A timberfl, saidf bolts"v being adapted. for. adjustment to an elevation in which: their} heads constitute 5 rests for the rear. end of the platform, as shown in dotted lines in Fig. 1,.

The; rail sect ions '3- have their front-ends bent upwardly- 1n arcuate'ly curved form, as

shown at 3?, and carriedby each of said curved ends isv awheel chock-comprising a bar 131 havinga toothedliaCe-uIdTlle upper .end ofeach; o fnsaidi {curved ra'i'lends 3? has one side] of its head, andbase portionspr'emovedtosubstantially the planefof the web"- throughont a suitable distance,leaving only.

a slightly projecting rib 12,1--as :shown' in Figs; 3 and 4,:adaptedto engage atoothof the: chock 11.1, Saidchock hasthereinaf'longitud-inal slot 13-;through ,whichand the rail webis'directed one or -mo re bolts; lfkwhereby said ch ck is secured in adjusted position.

As is obvious,-.said chocks may be adjusted forward or back with respect to-the railends 3* as may be required to arrest cars which mount the platform approximately at the I point at which the center of gravityof the platform and ,caris' in a verticalplane intersecting the axes of the spindlesfi.

From the foregoing it will be understood. i that, whena loaded car mounts thefplat form and its front wheels engagethe chocks 1'1 with considerable force, as ordinarily, the

momentum is sufiicientto carry'the car and platform from the normal horizontal-posi- I tion shown full lines in Fig.1 to the in v .clined dumping positionindicated in dotted lines insai'd figu're,in whicli theload is discharged from the car by gravity. In swingmg or rotating forward on the-spindles 6, the center of gravity of the platform and loaded car, which is located above the, level of said spindles and which should, theoreti cally, be located approximately ina vertical f plane intersecting the axes of said spindles, as shown ata in Fig. l, advances to a point, indicated at a in said figure. However, when the load shall have been dumped, the center of gravity of the platform and empty car will have shifted to a point Z) located hangers, rail sectionscarried by said'platform, and Wheel chocks located adjacent to the front ends of said sections and means for adjusting the positions of said chocks. 2. The combination with a tipple structure, of a car-dumping platform having thereon rail sections for receiving cars to be dumped, supports provided on the tipple structure at opposite'sides of said platform,

adjustable rests-for the rear end of said,

platform, hangers pivoted upon and depending from said supports, said platform being carried by said hangers, wheel chocks associated with said rail sections and means for adjusting the position of said chocks, the pivotal connections between said hangers and said supports being located'below the level of the center of gravity of the platform with a loaded car mounted thereon against said chocks and above the level of the center of gravity of said vplatform with an empty car occupying said position, and also being located approximately in a vertical plane intersecting said centers of gravity.

3. The combination with atipple structure, of {a, car-dumping platform having thereon rail sections for receiving cars to be dumped, supports provided on the tipple structure at opposite "sides of said platform, hangers pivoted upon and depending from said supports, said platform being carried by said hangers, wheel chocks associated with said rail sections, and means for adjusting the positions of said chocks, the

axis upon which said platform swings being.

located below the level of the center of gravity of the platform with a loadedcan mounted. thereon against "said chocks and above'the level of the center of gravity of said platform with an empty car occupying said position, said axis also being located approximately in a vertical plane intersecting said centers of gravity. 4c. The combination with a tipple structure, of a car-dumping platform having thereon rail sections for receiving cars to be dumped, supports provided upon. the

tipple structure at opposite sides of said olatform han ers ivoted uon and depending from said supports, said platform being carried by said hangers, wheel chocks associated with the front ends of said rail sections, and adjustable rests for-the rear end of said platform, the axis of rotation of said platform'being located below the center of gravity of the platform with a loaded car mounted"thereon against said chocks and above the/center of gravity of said platform with an empty car occupying said position, said axis also being located approximately in a vertical plane intersecting'said centers of gravity.

In testimony whereof, I affix my signature in presence of two subscribing witnesses.

CLEMENT O. SMITH. Witnesses: 1

H. E. DUNLAPS' N. L. SWIFT. 

